Heat pump or refrigerator has compressor for liquefying thermal medium expanded into an evaporator via choke element in form of expansion turbine driven by expanding thermal medium

摘要

The device has a compressor (1) for liquefying a thermal medium that is expanded into an evaporator via a choke element. The choke element is in the form of an expansion turbine driven by the expanding thermal medium. The rotary motion of the expansion turbine is fed back (32) to the compressor drive.